JPH05169608A - Manufacture of decorative composite sheet - Google Patents

Abstract

PURPOSE:To manufacture a sheet of high grade appearance while maintaining solid appearance by forming recessed and projected patterns by means of roll emboss on one face or both faces of a vinyl chloride resin sheet containing titanium mica of 0.3-5% and then laminating a colored vinyl chloride sheet. CONSTITUTION:Embossing is applied to one face or both faces of a vinyl chloride resin sheet 3 containing titanium mica of 0.3-5%. Recesses and projections are formed on the sheet face by embossing, and titanium mica of the flat plate shape as a pigment forms inclinations in synchronization of said recessions and projections to provide the design properties with deep and solid feeling. The inclination of titanium mica of flat plate shape remains after laminate thermal fixing by pressure by said recesses and projections processing to form a pattern similar to the recessed and projected pattern, and the pattern is provided with the deep and solid design. A colored vinyl chloride sheet 8 is pressed to the embossed titanium mica dispersed vinyl chloride resin sheet 3 by a plane hot platen 5 or a heated mirror surface roller.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative material used for furniture, interior covering members, etc., which has a glossy and three-dimensional pattern in which the bright color of the surface changes depending on the viewing angle. This also relates to a method for producing a decorative composite sheet having a high design property that changes depending on the viewing angle.

[0002]

2. Description of the Related Art In recent years, there is a growing demand for high-quality and unique furniture and interior materials. Among them, decorative sheets have been developed that are capable of expressing high-dimensional designs that are close to natural marble and wood that cannot be expressed only by printing designs, and that have mechanical strength and dimensional stability that are higher than those of natural materials. Japanese Laid-Open Patent Application No. 1-304875 and Japanese Patent Laid-Open No. 2-30475
No. 126946, etc.). In addition, it is essential to roll-press the laminated sheet such as a flat plate hot press or a thermal laminate when laminating the decorative sheet into a laminated composite, but if the surface is mirror-finished, ordinary pigments give a deeper design and a three-dimensional effect. There was a drawback that it was reduced or disappeared.

[0003]

DISCLOSURE OF THE INVENTION The present invention uses a plate-shaped titanium mica as a pigment, and a method for producing a decorative composite sheet while maintaining the specularity of the sheet surface and not impairing the three-dimensional design. Is provided.

[0004]

According to the present invention, a vinyl chloride resin sheet containing 0.3 to 5% of titanium mica is roll-embossed on one side or both sides of the sheet to form irregularities, and then a colored vinyl chloride sheet is laminated. , A method for producing a decorative composite sheet in which the surface is smoothed by thermocompression bonding with a flat plate hot press or roll press.

A schematic view of the roll embossing method according to the present invention is shown in FIGS. Vinyl chloride resin sheet 3 containing 0.3 to 5% of titanium mica as shown in FIG. 1 or 2.
Embossed on one or both sides of. The material of the embossing roll 1 used is not particularly limited as long as it can be embossed such as silicon rubber, fluororubber, urethane rubber. The embossing roll may be heated to emboss the surface of the sheet. By embossing in this way, the surface of the sheet is made uneven, and since the titanium mica of the pigment is flat in a shape that synchronizes with the unevenness, it has an inclination and a deeper design and a three-dimensional effect. In this way, if the surface is subjected to unevenness treatment by embossing, the flat plate-like titanium mica remains inclined even after the laminated thermocompression bonding described later, so that a pattern similar to the uneven pattern is formed, and the pattern has a depth. Has a three-dimensional design. As shown in FIG. 5, in the dispersed state of the titanium mica 9, the vertical axis 10 in the direction perpendicular to the plate surface of the titanium mica 9 is oriented in substantially the same direction in any unit portion in the plane direction of the vinyl chloride sheet 3, Arbitrary unit parts adjacent to each other are dispersed so that the axial directions thereof are different from each other, and are dispersed in a mottled pattern. The colored vinyl chloride sheet 8 is pressed on the embossed titanium mica-dispersed vinyl chloride resin sheet 3 obtained above by a flat plate heating plate 5 or a heating mirror surface roll 7 to fuse, smooth the surface and make it a mirror surface. The colored vinyl chloride sheet 8 used here determines the background color of the decorative composite sheet 4, and the design and hue of the decorative composite sheet 4 are determined in combination with the titanium mica-dispersed vinyl chloride sheet 3 by color selection. A schematic view of the flat plate hot press is shown in FIG. As shown in FIG. 3, the mirror-like plate 2 is sandwiched from both sides of the decorative composite sheet 3 and heated and pressed by the hot plates 1 from both sides.

[0006]

The mirror surface plate 6 may be made of any material as long as the smoothness and mirror surface property of the sheet are not impaired. Generally, a mirror surface plate obtained by plating a metal plate such as aluminum, stainless steel or iron with chromium or the like is used. Used. Further, a cushion material such as paper may be laid between the heating plate 5 and the mirror plate 6 in order to prevent the mirror plate from being damaged or damaged. As shown in FIG. 4, the titanium mica-containing vinyl chloride sheet 3 and the colored vinyl chloride sheet 8 are passed through a mirror-finished roll 7 by a roll laminating method to make the sheet smooth and mirror-finished. At this time, it is necessary to heat the mirror surface roll in order to fuse the sheets.

[0007]

[Titanium mica-containing vinyl chloride sheet]

Straight PVC with average molecular weight P = 700 (SX-7G manufactured by Sumitomo Chemical) 100 parts by weight Sn stabilizer (KS-2000GS manufactured by Kyodo Co., Ltd.) 1 part by weight Epoxidized soybean oil (O-130P manufactured by Asahi Denka) 2 parts by weight Possible Sorting agent (ATBC, manufactured by Dainippon Ink) 4 parts by weight Lubricant (wax OP, manufactured by Ciba Geigy) 0.2 parts by weight Lubricant (kaho wax # 220, manufactured by Kao) 0.4 parts by weight Reinforcing agent (Kaneace B-22, manufactured by Kanegafuchi Chemical Co., Ltd.) 7 1 part by weight Pearl pigment (Iriodin 235 manufactured by Merck & Co., Inc.) 1 part by weight With the above composition, the calorie method is used to make the dispersion state of iridin 235 non-uniform and finish in a marbled state, and further embossed silicon rubber roll (average surface roughness Ra = 3 to
Both sides of the sheet were embossed in 4) to produce a sheet having a thickness of 25 μm. [Black-colored vinyl chloride sheet] Tilt Denka black (manufactured by Denki Kagaku) Add 2% and calender 150 to thickness 150
Sheets were made with μ.

[Example 1] A double-sided embossed titanium mica-containing vinyl chloride sheet 3 and a black colored vinyl chloride sheet were stacked as shown in FIG. Press pressure 60kg /
It was heated and pressure pressed at cm ² . The obtained decorative composite sheet 4 was a high-quality design sheet having a smooth surface, a mirror surface, and maintaining the three-dimensional effect of the dispersed pattern of titanium mica.

Example 2 A titanium mica-dispersed vinyl chloride sheet 3 and a black colored vinyl chloride sheet 8 both sides of which were embossed were doubled at a laminating speed of 5 M / min through a heating mirror surface roll 7 as shown in FIG. 4 (heating temperature 150. ℃,
(Roll diameter 250 mmφ, Roll pressure 5 kg / cm ² ) The obtained decorative composite sheet 4 was a high-quality design sheet having a smooth mirror surface and maintaining the three-dimensional effect of the dispersed pattern of titanium mica.

[0010]

INDUSTRIAL APPLICABILITY According to the present invention, the titanium mica-containing vinyl chloride which can be laminated and composited without impairing the three-dimensional and deep design property of the titanium mica-containing vinyl chloride sheet which has been unevenly treated, has been subjected to the uneven treatment. The surface of the composite sheet of sheets can be made smooth and mirror-finished.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a double-sided concavo-convex treatment of a titanium mica-containing vinyl chloride sheet by the embossing roll of the present invention.

FIG. 2 is a schematic cross-sectional view of a single-sided concavo-convex treatment of a titanium mica-containing vinyl chloride sheet with the embossing roll of the present invention.

FIG. 3 is a schematic cross-sectional view of complex smoothing by flat plate hot pressing.

FIG. 4 is a schematic cross-sectional view of composite smoothing by roll laminating.

FIG. 5 is a cross-sectional view of a titanium mica-containing vinyl chloride sheet.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location C08K 3/20 KGJ 7167-4J C08L 27/06

Claims (1)

[Claims] 1. A vinyl chloride resin sheet containing titanium mica in an amount of 0.3 to 5% is formed with concavities and convexities on one or both sides by roll embossing, and then a colored vinyl chloride sheet is laminated and flat plate hot-pressed or roll-pressed. A method for producing a decorative composite sheet, which is thermocompression-bonded to smooth the surface.